E36 trailing arm

Types of E36 Trailing Arm

The E36 trailing arm is a critical component of the rear suspension system, connecting the rear axle to the vehicle's chassis. It is used in various BMW models, including the 3 Series. The E36 trailing arm provides stability, handling, and traction control, making it an essential part of the vehicle's performance. Different types of E36 trailing arms are designed to cater to specific vehicle models and performance requirements. Here are some standard E36 trailing arm types:

• Stock Trailing Arm: The stock E36 trailing arm is the standard suspension component used in most BMW E36 models. It is designed for everyday driving, providing a comfortable and stable ride. The stock trailing arm is suitable for general maintenance and typical road conditions.
• Polyurethane Bushings: Polyurethane bushings are used in the E36 trailing arm to improve handling and performance. These bushings replace the stock rubber bushings on the trailing arm. Polyurethane bushings offer increased durability, precision, and responsiveness, making them ideal for sporty driving, track use, or performance-oriented E36 models.
• Adjustable Trailing Arms: Adjustable E36 trailing arms are specialized suspension components designed for high-performance E36 models or racing applications. These trailing arms allow for adjustability in parameters such as wheel alignment, camber, and toe settings. Adjusting the E36 trailing arm can optimize traction, handling, and stability on the track or during high-speed cornering. Adjustable trailing arms are commonly used in motorsport, track day enthusiasts, and E36 tuning applications.
• Reinforced Trailing Arms: Reinforced E36 trailing arms are aftermarket solutions aimed at enhancing the strength and durability of the trailing arm. These trailing arms are designed to withstand higher loads and stresses, making them suitable for towing, heavy loads, or aggressive driving styles. Reinforced trailing arms can prevent premature wear, failure, and improve overall vehicle performance.

It is important to note that while some e36 trailing arms are designed for specific applications, certain components like polyurethane bushings and adjustable arms can be used across different E36 models with minor modifications. When selecting a specific e36 trailing arm type, consider the vehicle model, intended use, and performance requirements to ensure compatibility and optimal performance.

Specifications and maintenance of E36 trailing arm

The E36 trailing arm is a complex mechanical component, and its specifications are critical to its function. However, the specifications may vary depending on the specific vehicle model and the design used.

• Material

  The BMW E36 trailing arm was made of steel, but other cars' trailing arms are made of other materials, such as aluminum and composite materials. Steel is strong and durable, making it a popular choice for heavy-duty vehicles. Aluminum is lightweight and resistant to corrosion, making it ideal for lightweight and high-performance vehicles. Composite materials are becoming popular in modern vehicles because they are corrosion-resistant, strong, and lightweight. The material used for the trailing arm can affect the vehicle's handling, ride quality, and durability.

• Design

  The E36 trailing arm comes in various designs, such as the E36 rear suspension. The design affects the arm's strength, stiffness, and ability to maintain wheel alignment. The design of the trailing arm is critical to the vehicle's handling and ride quality.

• Bearings

  The E36 trailing arm typically uses rubber or polyurethane bearings. The bearings are critical for the arm's pivot point on the vehicle's chassis. They help to reduce noise, vibrations, and harshness (NVH) associated with the vehicle. The size and type of bearings can affect the vehicle's ride quality and handling characteristics.

• Bushings

  Like the bearings, the BMW E36 trailing arm bushings are critical components that help to connect the arm to the vehicle's chassis. They help to absorb shock and vibrations, maintaining the proper alignment of the wheels. The bushings are typically made of rubber or polyurethane and are available in different sizes and durometers (hardness).

• Mounting points

  The E36 trailing arm has mounting points for attaching the arm to the vehicle's chassis and the wheel hub assembly. The location and design of the mounting points are critical for the proper function of the trailing arm and the rear suspension system. Improper mounting can affect the vehicle's handling, ride quality, and durability.

The E36 trailing arm is a critical component of the BMW E36 rear suspension. It is responsible for maintaining proper wheel alignment and absorbing shocks and vibrations from the road. Like other car parts, the E36 trailing arm needs to be maintained to ensure it lasts longer and functions properly. Below is some general maintenance for the E36 trailing arm:

• Visual inspection

  Regular visual inspection of the E36 trailing arm, especially the bushings and bearings, is important to maintain the component in good condition. Look out for signs of wear, cracks, and damage. Also, check for signs of rust or corrosion, as they can affect the arm's function.

• Regular lubrication

  The bearings and bushings in the E36 trailing arm should be lubricated regularly to reduce friction, prevent wear and tear, and ensure smooth operation. Use the recommended lubricant and avoid over-lubrication, which can lead to damage and component failure.

• Replace worn-out bearings and bushings

  The bearings and bushings in the E36 trailing arm will wear out over time due to constant use and exposure to the elements. It is important to replace them as soon as the signs of wear are visible to prevent damage to other components of the rear suspension system. Use genuine replacement parts to ensure optimal performance and durability.

• Regular wheel alignment

  The E36 trailing arm is a critical component of the rear suspension system responsible for maintaining proper wheel alignment. However, it is important to check the wheel alignment regularly, especially after hitting a pothole or bump, to ensure the vehicle handles well and the tires wear evenly.

• Visual inspection

  Like other car components, the E36 trailing arms also need to be checked visually. This is because, over time, the E36 trailing arms can develop wear, tear, cracks, and damage that can affect their performance. Checking them out helps to know their condition.

How to Choose e36 Trailing Arm

When choosing the E36 trailing arm, buyers should consider the following:

• Driving Style

  For those who drive their cars in a sporty manner, especially on racetracks, the BMW E36 trailing arm bushings may be a better choice. They provide a more responsive feel. On the other hand, the normal E36 trailing arm bushings are sufficient for casual driving.

• Vehicle Usage

  If the vehicle is primarily used for daily commuting, a standard trailing arm bushing may be appropriate. For vehicles used in off-road conditions, more robust and durable options might be needed.

• Check Compatibility

  Not all E36 trailing arm bushings will fit every E36 model. It's essential to double-check that the chosen bushing matches the specific E36 model and year. This information can be found in the vehicle's owner's manual or by consulting with a mechanic.

• Cost vs. Quality

  It's tempting to choose the cheapest option when purchasing a new E36 trailing arm bushing. However, these bushings are vital to ensuring the wheels stay connected to the car. Investing in a high-quality bushing can save money in the long run, as it helps avoid damage to the E36 trailing arm and other related components.

• Material

  The E36 trailing arm bushings are primarily made of rubber. However, some bushings use polyurethane, a more durable material. Trailing arms made of polyurethane are stiffer than those made of rubber. This stiffness can lead to a more responsive feel, as well as more vibrations being transmitted to the driver. If the focus is on the driving experience, opting for a polyurethane bushing is worthwhile.

How to DIY and Replace e36 trailing arm

Replacing a BMW E36 trailing arm is a job that should be done by a professional mechanic. However, it is possible to do it as a DIY project, provided that the necessary mechanical skills are possessed. Before embarking on this project, ensure that all the necessary tools are available.

Start by lifting the car and securely placing it on jack stands. Remove the rear wheels and exhaust system. Next, drain the differential fluid and remove the differential mounting bolts. Then, remove the bolts that attach the E36 trailing arm to the chassis.

At this point, one can choose to refurbish the trailing arm instead of installing a new one. If refurbishing, clean the arm thoroughly and inspect it for wear. Replace any worn bushings or ball joints, and ensure that all moving parts are properly lubricated.

If one is installing a new trailing arm, now is the time to install it. Make sure it is properly aligned with the mounting points on the chassis. Reattach the bolts and nuts, and then tighten them to the manufacturer's specifications. Refill the differential with fluid, reconnect the exhaust system, and reattach the wheels. Lower the car and perform a final torque check on all fasteners.

When replacing the E36 trailing arm bushing, the process is fairly straightforward. Remove the old bushing from the trailing arm and install the new one. Ensure that it is properly seated and aligned.

Q&A

Q1: What is the BMW E36 Trailing Arm?

A1: The BMW E36 Trailing Arm is a component of the rear suspension system found in BMW E36 models. It plays a crucial role in controlling the rear wheels' movement and contributing to the overall stability and handling of the vehicle.

Q2: What are the common problems associated with the BMW E36 trailing arm?

A2: Common problems include wear and tear, bushings deterioration, cracks or damage to the trailing arm itself, and misalignment. These issues can result in handling problems, uneven tire wear, and reduced driving stability.

Q3: How can users maintain and take care of the BMW E36 Trailing Arm?

A3: Regular maintenance involves inspecting the trailing arm and its bushings for wear, cracks, or damage. Users should also ensure that all bolts and nuts are properly tightened and conduct visual inspections to check for oil leaks or damage. In case of damage, users should replace the bushings or the entire trailing arm.

Q4: Can users upgrade the BMW E36 Trailing Arm for better performance?

A4: Yes, users can upgrade the BMW E36 trailing arms for better performance. Several aftermarket manufacturers offer high-performance bushings and trailing arm kits specifically designed for the E36 platform. These upgrades can enhance rear suspension stiffness, improve handling, and provide a more responsive driving experience.